222 COMPOSITE. Solidago. 



rior scales of the involucre somewhat pubescent or ciliate. — The plant which 

 we have, with some hesitation, considered a variety of this species, has nar- 

 rower and less velvety-canescent leaves, more acute, looser racemes, &c. 

 The species would probably be sought for among the Triplinerviee ; but we 

 have retained it in this subdivision on account of its close alhance to the 

 adjacent species. 



'* + **** jiacemes spreading or recurved (scorpioid), secund: leaves manifestly 

 triplinerved or 3-ribbed. — Ti'iplinervdse. 



t Heads middle-sized : scales of the involucre rather thick and rigid, closely im- 

 bricated, with gi-eenish tips. 



60. S. Shortii: stem simple or branching from the base, minutely sca- 

 brous-pubescent; leaves rigid, smooth and glabrous, with ciliolate-scabrous 

 margins, oblong-lanceolate, acute ; the lower tapering to the base, sharply 

 and unequally serrate towards the apex ; the uppermost entire ; racemes 

 short, disposed in an elongated crowded panicle ; scales of the involucre 

 Unear-oblong; achenia silky-pubescent. 



l3, heads disposed in a somewhat simple glomerate-spicate raceme. 



7. lower leaves slightly serrate, the upper entire. 



Rocky islands at the Falls of the Ohio, Dr. Short ! {a. & y.) Kentucky? 

 Herb. Rafinesque ! {j3. & y.) July-Aug. — A very distinct species, 1-2 feet 

 high, with the inflorescence and somewhat the habit of S. nemoralis ; but with 

 larger heads, and very smooth and somewliat shining acute leaves, the mar- 

 gins of which are mostly beset with small and rigid inflexed cilias; the lower 

 2-3 inches long, strongly triplinerved, and somewhat reticulate-veined ; the 

 uppermost commonly veinless. Racemes numerous, rather dense, secund, 

 at length spreading, forming an erect or decurved more or less contracted 

 panicle, 3-8 inches in length, which is often leafy at the base. Ray and 

 disk-flowers each 5-7. 



61. S. Missouriensis (Nutt.) : smooth and glabrous ; stem low, simple ; 

 leaves rigid, linear-lanceolate, acute, with very scabrous margins ; the lower 

 tapering to the base, sharply and sparsely serrulate (or even laciniate-serrate) 

 towards the apex ; the radical oblong-spatulate, petioied, 3-5-nerved, reticu- 

 lated ; racemes rather dense, slender, at length recurved-spreading, forming 

 a short and crowded pyramidal panicle ; scales of the involucre oblong, ob- 

 tuse ; achenia slightly pubescent. — Nuit. ! in jour. acad. Philad. 7. p. 32, 

 8c trans. Amer. phil. soc. {n. ser.) 7. p>' 327. S. serotina. Hook. ! in cotnpan. 

 to hot. mag. 1. p. 97. S. glaberrima. Martens, in acad. Brux. 1 (we have 

 seen no character), founded on a plant collected in Missouri by Duerinck. 



/3. leaves shorter and wider, less pointed. 



7. leaves more slender ; stem corymbose at the summit; achenia glabrous. 



Dry prairies of the Assiniboin {Douglas !) and the sources of St. Peter's 

 River (Mr. Nicollet !) of the Upper Missouri [Mr. Wyeth !) to St. Louis, 

 Drummond ! Illinois, Mr. Buckley! Louisiana and Arkansas, Dr. Pitcher ! 

 Dr. Lcavcmcortli ! (Also Chapel Hill, North Carolina, according to Nuttall; 

 but we apprehend some mistake.) [i. Texas, Dru7nni,ond .' 7. Illinois, ikfr. 

 Buckley ! Julv-Aug. — Stem a foot or more in height, from a somewhat 

 ligneous caudex, simple, or sometimes fastigiately branched at tlie summit. 

 Leaves crowded, often fascicled in the upper axils, coriaceous, shining, per- 

 fectly smooth, except the densely ciliolate-scabrous margins ; the uppennost 

 entire and scarcely if at all nerved ; the others varying from obscurely ap- 

 pressed-serrulate to sparsely laciniate-toothed, conspicuously triplinerved 

 when old, with the veins of the lower surface also somewhat parallel (the 

 veinlets minutely reticulated), 2-3 inches long, 2-4 (in /3. sometimes half an 

 inch) in width. Racemes at first nearly erect, at length elongated and re- 



